/*
 *  Copyright 2006 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.mybatis.generator.api.dom.java;

/**
 * @author Jeff Butler
 * 
 */
public class PrimitiveTypeWrapper extends FullyQualifiedJavaType {
	private static PrimitiveTypeWrapper booleanInstance;
	private static PrimitiveTypeWrapper byteInstance;
	private static PrimitiveTypeWrapper characterInstance;
	private static PrimitiveTypeWrapper doubleInstance;
	private static PrimitiveTypeWrapper floatInstance;
	private static PrimitiveTypeWrapper integerInstance;
	private static PrimitiveTypeWrapper longInstance;
	private static PrimitiveTypeWrapper shortInstance;

	private String toPrimitiveMethod;

	/**
	 * Use the static getXXXInstance methods to gain access to one of the type
	 * wrappers.
	 * 
	 * @param fullyQualifiedName
	 *            fully qualified name of the wrapper type
	 * @param toPrimitiveMethod
	 *            the method that returns the wrapped primitive
	 */
	private PrimitiveTypeWrapper(String fullyQualifiedName, String toPrimitiveMethod) {
		super(fullyQualifiedName);
		this.toPrimitiveMethod = toPrimitiveMethod;
	}

	public String getToPrimitiveMethod() {
		return toPrimitiveMethod;
	}

	public static PrimitiveTypeWrapper getBooleanInstance() {
		if (booleanInstance == null) {
			booleanInstance = new PrimitiveTypeWrapper("java.lang.Boolean", //$NON-NLS-1$
					"booleanValue()"); //$NON-NLS-1$
		}

		return booleanInstance;
	}

	public static PrimitiveTypeWrapper getByteInstance() {
		if (byteInstance == null) {
			byteInstance = new PrimitiveTypeWrapper("java.lang.Byte", //$NON-NLS-1$
					"byteValue()"); //$NON-NLS-1$
		}

		return byteInstance;
	}

	public static PrimitiveTypeWrapper getCharacterInstance() {
		if (characterInstance == null) {
			characterInstance = new PrimitiveTypeWrapper("java.lang.Character", //$NON-NLS-1$
					"charValue()"); //$NON-NLS-1$
		}

		return characterInstance;
	}

	public static PrimitiveTypeWrapper getDoubleInstance() {
		if (doubleInstance == null) {
			doubleInstance = new PrimitiveTypeWrapper("java.lang.Double", //$NON-NLS-1$
					"doubleValue()"); //$NON-NLS-1$
		}

		return doubleInstance;
	}

	public static PrimitiveTypeWrapper getFloatInstance() {
		if (floatInstance == null) {
			floatInstance = new PrimitiveTypeWrapper("java.lang.Float", //$NON-NLS-1$
					"floatValue()"); //$NON-NLS-1$
		}

		return floatInstance;
	}

	public static PrimitiveTypeWrapper getIntegerInstance() {
		if (integerInstance == null) {
			integerInstance = new PrimitiveTypeWrapper("java.lang.Integer", //$NON-NLS-1$
					"intValue()"); //$NON-NLS-1$
		}

		return integerInstance;
	}

	public static PrimitiveTypeWrapper getLongInstance() {
		if (longInstance == null) {
			longInstance = new PrimitiveTypeWrapper("java.lang.Long", //$NON-NLS-1$
					"longValue()"); //$NON-NLS-1$
		}

		return longInstance;
	}

	public static PrimitiveTypeWrapper getShortInstance() {
		if (shortInstance == null) {
			shortInstance = new PrimitiveTypeWrapper("java.lang.Short", //$NON-NLS-1$
					"shortValue()"); //$NON-NLS-1$
		}

		return shortInstance;
	}
}
